3-Chloroquinolin-2(1H)-one

Also known as: 3-Chloroquinolin-2-one, 3-Chloro-1H-quinolin-2-one, 3-Chloro-carbostyril, 3-Chlorcarbostyril, 3-Chlor-chinolin-2-ol, 3-chloro-quinolin-2-ol

3-Chloroquinolin-2(1H)-one (CAS 939-17-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6ClNO and a molecular weight of 179.60300 g/mol. Key properties include a boiling point of 377.2ºC at 760mmHg, a density of 1.38g/cm3 and a flash point of 181.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 939-17-3
Jingsj CID: J-1001047-6
Molecular Formula: C₉H₆ClNO
Molecular Weight: 179.60300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	377.2ºC at 760mmHg
Density	1.38g/cm3
Flash Point	181.9ºC
Exact Mass	179.01400
PSA	32.86000
LogP	2.18150
Refractive Index	1.642

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Chloroquinolin-2(1H)-one?

The CAS number of 3-Chloroquinolin-2(1H)-one is 939-17-3.

What are the molecular formula and molecular weight of 3-Chloroquinolin-2(1H)-one?

3-Chloroquinolin-2(1H)-one has molecular formula C9H6ClNO and molecular weight 179.60300 g/mol.

What are the upstream and downstream products of 3-Chloroquinolin-2(1H)-one?

For 3-Chloroquinolin-2(1H)-one, Downstream Products: 2,3-Dichloroquinoline.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3-Chloroquinolin-2(1H)-one (CAS 939-17-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001047-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.